Home / 8,180.44-12,270.54-7,764.88

Finding the Fourth Proportional to 8,180.44, 12,270.54 and 7,764.88

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Solution

The fourth proportional to 8,180.44, 12,270.54 and 7,764.88 is: 11,647.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.44 : 12,270.54 = 7,764.88 : x
  2. Step 2: Convert to fraction form
    8,180.44/12,270.54 = 7,764.88/x
  3. Step 3: Cross multiply
    8,180.44x = 12,270.54 × 7,764.88
  4. Step 4: Simplify right side
    8,180.44x = 95,279,270.64
  5. Step 5: Solve for x
    x = 95,279,270.64/8,180.44
  6. Step 6: Final answer
    x = 11,647.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.